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#ifndef STRBUF_H #define STRBUF_H /* See Documentation/technical/api-strbuf.txt */ extern char strbuf_slopbuf[]; struct strbuf { size_t alloc; size_t len; char *buf; }; #define STRBUF_INIT { 0, 0, strbuf_slopbuf } /*----- strbuf life cycle -----*/ extern void strbuf_init(struct strbuf *, size_t); extern void strbuf_release(struct strbuf *); extern char *strbuf_detach(struct strbuf *, size_t *); extern void strbuf_attach(struct strbuf *, void *, size_t, size_t); static inline void strbuf_swap(struct strbuf *a, struct strbuf *b) { struct strbuf tmp = *a; *a = *b; *b = tmp; } /*----- strbuf size related -----*/ static inline size_t strbuf_avail(const struct strbuf *sb) { return sb->alloc ? sb->alloc - sb->len - 1 : 0; } extern void strbuf_grow(struct strbuf *, size_t); static inline void strbuf_setlen(struct strbuf *sb, size_t len) { if (len > (sb->alloc ? sb->alloc - 1 : 0)) die("BUG: strbuf_setlen() beyond buffer"); sb->len = len; sb->buf[len] = '\0'; } #define strbuf_reset(sb) strbuf_setlen(sb, 0) /*----- content related -----*/ extern void strbuf_trim(struct strbuf *); extern void strbuf_rtrim(struct strbuf *); extern void strbuf_ltrim(struct strbuf *); extern int strbuf_reencode(struct strbuf *sb, const char *from, const char *to); extern void strbuf_tolower(struct strbuf *sb); extern int strbuf_cmp(const struct strbuf *, const struct strbuf *); static inline int strbuf_strip_suffix(struct strbuf *sb, const char *suffix) { if (strip_suffix_mem(sb->buf, &sb->len, suffix)) { strbuf_setlen(sb, sb->len); return 1; } else return 0; } /* * Split str (of length slen) at the specified terminator character. * Return a null-terminated array of pointers to strbuf objects * holding the substrings. The substrings include the terminator, * except for the last substring, which might be unterminated if the * original string did not end with a terminator. If max is positive, * then split the string into at most max substrings (with the last * substring containing everything following the (max-1)th terminator * character). * * For lighter-weight alternatives, see string_list_split() and * string_list_split_in_place(). */ extern struct strbuf **strbuf_split_buf(const char *, size_t, int terminator, int max); /* * Split a NUL-terminated string at the specified terminator * character. See strbuf_split_buf() for more information. */ static inline struct strbuf **strbuf_split_str(const char *str, int terminator, int max) { return strbuf_split_buf(str, strlen(str), terminator, max); } /* * Split a strbuf at the specified terminator character. See * strbuf_split_buf() for more information. */ static inline struct strbuf **strbuf_split_max(const struct strbuf *sb, int terminator, int max) { return strbuf_split_buf(sb->buf, sb->len, terminator, max); } /* * Split a strbuf at the specified terminator character. See * strbuf_split_buf() for more information. */ static inline struct strbuf **strbuf_split(const struct strbuf *sb, int terminator) { return strbuf_split_max(sb, terminator, 0); } /* * Free a NULL-terminated list of strbufs (for example, the return * values of the strbuf_split*() functions). */ extern void strbuf_list_free(struct strbuf **); /*----- add data in your buffer -----*/ static inline void strbuf_addch(struct strbuf *sb, int c) { strbuf_grow(sb, 1); sb->buf[sb->len++] = c; sb->buf[sb->len] = '\0'; } extern void strbuf_insert(struct strbuf *, size_t pos, const void *, size_t); extern void strbuf_remove(struct strbuf *, size_t pos, size_t len); /* splice pos..pos+len with given data */ extern void strbuf_splice(struct strbuf *, size_t pos, size_t len, const void *, size_t); extern void strbuf_add_commented_lines(struct strbuf *out, const char *buf, size_t size); extern void strbuf_add(struct strbuf *, const void *, size_t); static inline void strbuf_addstr(struct strbuf *sb, const char *s) { strbuf_add(sb, s, strlen(s)); } static inline void strbuf_addbuf(struct strbuf *sb, const struct strbuf *sb2) { strbuf_grow(sb, sb2->len); strbuf_add(sb, sb2->buf, sb2->len); } extern void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len); extern void strbuf_addchars(struct strbuf *sb, int c, size_t n); typedef size_t (*expand_fn_t) (struct strbuf *sb, const char *placeholder, void *context); extern void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn, void *context); struct strbuf_expand_dict_entry { const char *placeholder; const char *value; }; extern size_t strbuf_expand_dict_cb(struct strbuf *sb, const char *placeholder, void *context); extern void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src); __attribute__((format (printf,2,3))) extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...); __attribute__((format (printf, 2, 3))) extern void strbuf_commented_addf(struct strbuf *sb, const char *fmt, ...); __attribute__((format (printf,2,0))) extern void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap); extern void strbuf_add_lines(struct strbuf *sb, const char *prefix, const char *buf, size_t size); /* * Append s to sb, with the characters '<', '>', '&' and '"' converted * into XML entities. */ extern void strbuf_addstr_xml_quoted(struct strbuf *sb, const char *s); static inline void strbuf_complete_line(struct strbuf *sb) { if (sb->len && sb->buf[sb->len - 1] != '\n') strbuf_addch(sb, '\n'); } extern size_t strbuf_fread(struct strbuf *, size_t, FILE *); /* XXX: if read fails, any partial read is undone */ extern ssize_t strbuf_read(struct strbuf *, int fd, size_t hint); extern int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint); extern int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint); extern int strbuf_getcwd(struct strbuf *sb); extern int strbuf_getwholeline(struct strbuf *, FILE *, int); extern int strbuf_getline(struct strbuf *, FILE *, int); extern int strbuf_getwholeline_fd(struct strbuf *, int, int); extern void stripspace(struct strbuf *buf, int skip_comments); extern int launch_editor(const char *path, struct strbuf *buffer, const char *const *env); extern int strbuf_branchname(struct strbuf *sb, const char *name); extern int strbuf_check_branch_ref(struct strbuf *sb, const char *name); extern void strbuf_addstr_urlencode(struct strbuf *, const char *, int reserved); extern void strbuf_humanise_bytes(struct strbuf *buf, off_t bytes); extern void strbuf_add_absolute_path(struct strbuf *sb, const char *path); __attribute__((format (printf,1,2))) extern int printf_ln(const char *fmt, ...); __attribute__((format (printf,2,3))) extern int fprintf_ln(FILE *fp, const char *fmt, ...); char *xstrdup_tolower(const char *); /* * Create a newly allocated string using printf format. You can do this easily * with a strbuf, but this provides a shortcut to save a few lines. */ __attribute__((format (printf, 1, 0))) char *xstrvfmt(const char *fmt, va_list ap); __attribute__((format (printf, 1, 2))) char *xstrfmt(const char *fmt, ...); #endif /* STRBUF_H */
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